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Internal Frame Backpacks

(265 products)
Products (265)
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    OspreyTempest 20 Pack - Women's
    $102.73
    Save 35%
    compared to  $160.00
    154 reviews with an average rating of 4.1 out of 5 stars
    Gear Capacity:
    18 to 20 liters
    Weight:
    2.04 to 2.21 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    Top Rated
    GregoryBaltoro 65 Pack - Closeout - Men's
    $247.73
    Save 24%
    compared to  $329.95
    101 reviews with an average rating of 4.5 out of 5 stars
    Trip Length/Capacity:
    Multiday, Extended
    Gear Capacity:
    60 to 70 liters
    Weight:
    4.72 to 5.25 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    Top Rated
    GregoryBaltoro 75 Pack - Closeout - Men's
    $262.73
    Save 24%
    compared to  $349.95
    79 reviews with an average rating of 4.6 out of 5 stars
    Trip Length/Capacity:
    Extended, Multiday
    Gear Capacity:
    70 to 75 liters
    Weight:
    4.8 to 5 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    GregoryCitro 24 Pack - Closeout
    $112.73
    Save 24%
    compared to  $149.95
    1 reviews with an average rating of 5.0 out of 5 stars
    Gear Capacity:
    24 liters
    Weight:
    2.02 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    REI Co-opTrail 25 Pack
    $99.95
    124 reviews with an average rating of 4.4 out of 5 stars
    Gear Capacity:
    25 liters
    Weight:
    1.81 to 1.87 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    Top Rated
    OspreyAriel 55 Pack - Women's
    $193.73
    Save 35%
    compared to  $300.00
    13 reviews with an average rating of 4.6 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    55 liters
    Weight:
    4.82 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    GregoryMaven 45 Pack - Closeout - Women's
    $171.73
    Save 25%
    compared to  $229.95
    1 reviews with an average rating of 5.0 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    42 to 45 liters
    Weight:
    3.25 to 3.31 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    REI Co-opFlash 55 Pack - Men's
    $219.00
    81 reviews with an average rating of 4.2 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    53 to 57 liters
    Weight:
    2.75 to 2.87 lbs
    Features:
    Ultralight
    Reservoir Compatible
    GregoryKalmia 50 Pack - Closeout - Women's
    $186.73
    Save 35%
    compared to  $289.95
    10 reviews with an average rating of 3.7 out of 5 stars
    Trip Length/Capacity:
    Weekend, Multiday
    Gear Capacity:
    50 liters
    Weight:
    4.37 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    GregoryKalmia 60 Pack - Closeout - Women's
    $231.73
    Save 25%
    compared to  $309.95
    2 reviews with an average rating of 5.0 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    55 to 60 liters
    Weight:
    4.41 to 4.48 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    REI Co-opTrail 40 Pack - Men's
    $149.00
    42 reviews with an average rating of 4.4 out of 5 stars
    Gear Capacity:
    40 to 41 liters
    Weight:
    2.75 to 3 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    GregoryJuno 30 Pack - Women's
    $119.73
    Save 25%
    compared to  $159.95
    2 reviews with an average rating of 3.0 out of 5 stars
    Gear Capacity:
    30 liters
    Weight:
    2.06 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    GregoryDeva 60 Pack - Women's
    $247.73
    Save 24%
    compared to  $329.95
    5 reviews with an average rating of 4.4 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    55 to 65 liters
    Weight:
    4.61 to 4.96 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    GregoryCitro 30 Pack
    $119.73
    Save 25%
    compared to  $159.95
    0 reviews
    Gear Capacity:
    30 liters
    Weight:
    2.09 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    REI Co-opFlash 55 Pack - Women's
    $219.00
    77 reviews with an average rating of 4.2 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    53 to 57 liters
    Weight:
    2.62 to 2.75 lbs
    Features:
    Ultralight
    Reservoir Compatible
    OspreyTalon 22 Pack - Men's
    $119.73
    Save 25%
    compared to  $160.00
    240 reviews with an average rating of 4.3 out of 5 stars
    Gear Capacity:
    20 liters
    Weight:
    2.06 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    Arc'teryxMantis 26 L Pack
    $135.73
    Save 15%
    compared to  $160.00
    7 reviews with an average rating of 4.4 out of 5 stars
    Gear Capacity:
    26 liters
    Weight:
    1.85 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    GregoryDeva 70 Pack - Closeout - Women's
    $262.73
    Save 24%
    compared to  $349.95
    58 reviews with an average rating of 4.5 out of 5 stars
    Trip Length/Capacity:
    Multiday, Extended
    Gear Capacity:
    65 to 75 liters
    Weight:
    4.7 to 5.1 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    GregoryJuno 24 Pack - Women's
    $112.73
    Save 24%
    compared to  $149.95
    1 reviews with an average rating of 4.0 out of 5 stars
    Gear Capacity:
    24 liters
    Weight:
    1.93 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    REI Co-opTrailmade 60 Pack - Men's
    $179.00
    8 reviews with an average rating of 4.3 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 liters
    Weight:
    3.38 to 3.69 lbs
    Features:
    Reservoir Compatible
    Top Rated
    GregoryKalmia 60 Pack - Closeout - Women's Plus Sizes
    $199.73
    Save 35%
    compared to  $309.95
    31 reviews with an average rating of 4.9 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    55 to 60 liters
    Weight:
    4.7 to 4.78 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    Top Rated
    GregoryArrio 18 Pack
    $67.73
    Save 24%
    compared to  $89.95
    11 reviews with an average rating of 4.5 out of 5 stars
    Gear Capacity:
    18 liters
    Weight:
    1.39 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    OspreyViva 65 Extended Fit Pack - Women's
    $164.73
    Save 25%
    compared to  $220.00
    4 reviews with an average rating of 5.0 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    65 liters
    Weight:
    4.2 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    Top Rated
    OspreyTempest 22 Pack - Women's
    $170.00
    28 reviews with an average rating of 4.7 out of 5 stars
    Gear Capacity:
    22 liters
    Weight:
    2.38 to 2.98 lbs
    Features:
    Reservoir Compatible
    GregoryMaven 65 Pack - Closeout - Women's
    $209.73
    Save 25%
    compared to  $279.95
    1 reviews with an average rating of 4.0 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    62 to 65 liters
    Weight:
    3.44 to 3.5 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    ALPS MountaineeringFactor 40 Pack
    $134.73
    Save 25%
    compared to  $179.99
    0 reviews
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    40 liters
    Weight:
    2.88 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    Top Rated
    OspreyTalon 22 Pack - Men's
    $170.00
    40 reviews with an average rating of 4.5 out of 5 stars
    Gear Capacity:
    22 liters
    Weight:
    2.38 to 2.98 lbs
    Features:
    Reservoir Compatible
    Top Rated
    REI Co-opTrail 40 Pack - Women's
    $149.00
    20 reviews with an average rating of 4.6 out of 5 stars
    Gear Capacity:
    40 to 41 liters
    Weight:
    2.56 to 2.87 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    GregoryArrio 24 Pack - Plus Size
    $67.73
    Save 38%
    compared to  $109.95
    7 reviews with an average rating of 4.1 out of 5 stars
    Gear Capacity:
    24 liters
    Weight:
    3.23 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    OspreyAriel 65 Pack - Women's
    $206.73
    Save 35%
    compared to  $320.00
    32 reviews with an average rating of 4.1 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    62 liters
    Weight:
    4.85 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
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